Callies Dragon Slayer LS Crankshaft, 4.125 Stroke, 2.100 RJ, Each

The Gen II/IV LS1 DragonSlayer crankshaft is 4.125 stroke with 2.100 rod journals. Our Callies LS1 crankshafts are machined from premium 4340 forgings. Each Callies LS1 features PERMA-TOUGH heat treating for added strength and serviceability. DragonSlayer LS1 crankshafts are sold with gun drilled mains and Angalite drilled rod journals. Callies will balance your DragonSlayer up to an 1820 bob weight.

By utilizing the latest in computer aided solid modeling and CNC machining centers, Callies is able to offer the best designed, highest quality crankshafts, connecting rods, and camshaft cores available on the market today.

DragonSlayer crankshafts are made in the U.S.A. for American racers. With an expanded line of part numbers the DragonSlayer set the standard by which other sportsman crankshafts are measured.

These crankshafts are machined to the tolerances demanded by today’s high performance engine builder. Roundness and taper are held to less than .0003” on all rod and main journal diameters. Our final polishing procedures produce excellent load carrying surfaces that ensure extended bearing life and trouble free operation.

Each Callies DragonSlayer receives our proven Ultra-Case heat treatment. Callies heat treat expertise combined with our high purity premium 4340 forging produce a strength of unparalleled value. All DragonSlayers are produced with standard Chevy Rod journal diameters and widths for SBC, BBC, Mopar and Ford applications.